Lesson C3-C4
C3-C4 Parametric equations and modelling Quiz: AQA Maths, Unit 3
20 questions
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Lesson C3-C4, Parametric equations and modelling: 20 multiple choice questions for the AQA Maths (7357), Unit 3: Coordinate geometry, written with Revision Ninja.
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The 20 questions
-
What is a parametric equation?
- An equation with x and y in one expression
- An equation involving only x
- Equations giving x and y each in terms of a third variable, the parameter
- An equation with no variables
-
Convert x = t + 1, y = t^2 to a Cartesian equation.
- y = (x + 1)^2
- y = x^2 + 1
- y = x^2 - 1
- y = (x - 1)^2
-
Eliminate t from x = 2t and y = 3t - 1.
- y = 3x/2 - 1
- y = 6x - 1
- y = 3x/2 + 1
- y = 2x/3 - 1
-
What is the point on x = t^2, y = 2t + 1 when t = 2?
- (2, 4)
- (2, 5)
- (4, 4)
- (4, 5)
-
Which Cartesian equation is given by x = 3 cos t, y = 3 sin t?
- x + y = 3
- x^2 + y^2 = 3
- x^2 + y^2 = 9
- x^2 - y^2 = 9
-
For x = t^2 and y = t^3, what is dy/dx in terms of t?
- 2t/3
- t/2
- 3t/2
- 3t^2
-
For x = t^2 and y = t^3, what is the gradient at t = 1?
- 3
- 3/2
- 2/3
- 1
-
What is the formula for dy/dx with parametric equations?
- (dy/dt)/(dx/dt)
- d^2y/dt^2
- (dy/dt) x (dx/dt)
- (dx/dt)/(dy/dt)
-
Which is a parametric form of y = x^2?
- x = 2t, y = t^2
- x = t^2, y = t
- x = t, y = t^2
- x = t, y = t
-
A projectile has x = 20t and y = 15t - 5t^2 (metres, seconds). How far does it travel horizontally before landing?
- 20 m
- 120 m
- 45 m
- 60 m
-
For the projectile with y = 15t - 5t^2, what is the maximum height and when does it occur?
- 11.25 m at t = 3 s
- 22.5 m at t = 1.5 s
- 11.25 m at t = 1.5 s
- 15 m at t = 1 s
-
A line is given by x = 1 + 2t, y = 3 - t. Which Cartesian equation does it satisfy?
- x + 2y = 7
- x - 2y = 1
- x + 2y = 5
- 2x - y = 1
-
Where does the curve x = t + 1, y = t^2 - 4 cross the x-axis?
- (0, -4) and (2, 0)
- (3, 0) only
- (1, 0) and (-3, 0)
- (3, 0) and (-1, 0)
-
What Cartesian equation is given by x = sec t, y = tan t?
- x - y = 1
- x^2 - y^2 = 1
- y^2 - x^2 = 1
- x^2 + y^2 = 1
-
For x = cos t, y = sin t, what is dy/dx at t = pi/4?
- -sqrt(2)
- 1
- 0
- -1
-
For x = t^2, y = 2t, what is the equation of the tangent at t = 2?
- x - 2y + 4 = 0
- x + 2y - 12 = 0
- x - 2y - 4 = 0
- 2x - y - 4 = 0
-
A particle has x = 3t and y = t^2 - 2t. When is it at (6, 0)?
- t = 2
- t = 3
- t = 6
- t = 1
-
Which describes the curve x = 2 + 3 cos t, y = 1 + 3 sin t?
- Centre (2, 1), radius 9
- Centre (2, 1), radius 3
- Centre (3, 3), radius 2
- Centre (-2, -1), radius 3
-
A stone has horizontal displacement x = 8t and height y = 6t - 4.9t^2 metres. Roughly how long until it lands?
- About 1.22 s
- About 0.61 s
- About 6 s
- About 2.45 s
-
For x = t and y = 1/t with t > 0, what Cartesian equation is satisfied?
- y = x
- xy = 1
- x^2 + y^2 = 1
- x + y = 1
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